User`s guide

258 ■ Chapter 4: Drawing Organization and Inquiry Commands
Typical Architectural Layer Configuration
Use the Layer Properties Manager to create and manage the layers in a drawing.
Layer Key Points
■ Use layers to organize objects in your drawing.
■ Layers have property settings that determine the color, linetype, and lineweight of the objects on
that layer.
■ Use the Layer Properties Manager dialog box to create and manage layers.
■ Every drawing contains at least the default Layer 0.
■ To organize a drawing, consider grouping objects onto layers based on function, appearance, or
other commonalities.
■ There are many industry standards concerning layering from which you can establish a layering
standard for your drawings.
■ When your drawing is organized with layers, you can easily control entire groups of objects.
Default Layer
Every drawing that you create has a default layer called 0 (zero). This ensures that every drawing
contains at least one layer.
Default Layer Defined
When you create a new drawing, a number of layers may be present depending on the template that
you used. Layer 0, however, is persistent regardless of the template used. Every drawing will contain
the default layer 0.
Layer 0 cannot be renamed or deleted. AutoCAD® uses that layer to establish predictable behaviors
for objects such as blocks, regardless of how other layers are named.